<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/avatar.jpg" alt />
      </div>
      <el-form
        ref="loginFromRef"
        label-width="0px"
        :model="loginFrom"
        :rules="loginFromRules"
        class="login_from"
      >
        <el-form-item prop="username">
          <el-input placeholder="请输入账号" v-model="loginFrom.username" prefix-icon="el-icon-user"></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            placeholder="请输入密码"
            v-model="loginFrom.password"
            prefix-icon="el-icon-lock"
            show-password
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginFrom">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginFrom: {
        username: 'admin',
        password: '123456'
      },
      loginFromRules: {
        username: [
          { required: true, message: '账号不能为空', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    login() {
      this.$refs.loginFromRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginFrom)
        if (res.meta.status !== 200) this.$message.error('登陆失败!')
        window.sessionStorage.setItem('token', res.data.token)
        this.$router.push('/home')
      })
    },
    resetLoginFrom() {
      this.$refs.loginFromRef.resetFields()
    }
  }
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  height: 300px;
  width: 450px;
  background-color: #ffffff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);

  .avatar_box {
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px;
    position: absolute;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }

  .login_from {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }
}
</style>
